2.2.5.9怎么算24
1个回答

1:2 × (5 - 2 + 9)

2:2 × ((5 - 2) + 9)

3:2 × (5 - (2 - 9))

4:2 × (5 + 9 - 2)

5:2 × ((5 + 9) - 2)

6:2 × (5 + (9 - 2))

7:2 × (9 - 2 + 5)

8:2 × ((9 - 2) + 5)

9:2 × (9 - (2 - 5))

10:2 × (9 + 5 - 2)

11:2 × ((9 + 5) - 2)

12:2 × (9 + (5 - 2))

13:(5 - 2 + 9) × 2

14:((5 - 2) + 9) × 2

15:(5 - (2 - 9)) × 2

16:(5 + 9 - 2) × 2

17:((5 + 9) - 2) × 2

18:(5 + (9 - 2)) × 2

19:(9 - 2 + 5) × 2

20:((9 - 2) + 5) × 2

21:(9 - (2 - 5)) × 2

22:(9 + 5 - 2) × 2

23:((9 + 5) - 2) × 2

24:(9 + (5 - 2)) × 2

回答完毕,